Technology in cancer research & treatment Journal Impact Factor & Information

Publisher: Adenine Press

Journal description

Technology in Cancer Research and Treatment welcomes manuscripts from active investigators involved in technologies devoted to early diagnosis, treatment, and palliation of cancer. The Journal will include both experimental and theoretical investigations. Among the topics that will be covered are MRI, including functional MRI, spiral CT, PET, optical spectroscopy, computer-aided reconstruction of tumors, computer-aided drug design, stereotactic radiosurgery, cryosurgery, brachytherapy, electroporation, photodynamic therapy, gene therapy, cancer vaccine, proteomics, and genomics, as they impact cancer research and treatment. Special emphasis will be given to non-invasive techniques. The Journal publishes original articles, express communications, opinion pieces, and timely reviews.

Current impact factor: 1.73

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 1.73
2013 Impact Factor 1.886
2012 Impact Factor 1.943
2011 Impact Factor 1.692
2010 Impact Factor 1.814
2009 Impact Factor 2.023
2008 Impact Factor 1.951
2007 Impact Factor 2.362
2006 Impact Factor 2.366
2005 Impact Factor 1.677

Impact factor over time

Impact factor

Additional details

5-year impact 1.91
Cited half-life 7.00
Immediacy index 0.59
Eigenfactor 0.00
Article influence 0.55
Website Technology in Cancer Research and Treatment website
Other titles Technology in cancer research & treatment (Print), Technology in cancer research & treatment, Technology in cancer research and treatment
ISSN 1533-0346
OCLC 45625094
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

Adenine Press

  • Pre-print
    • Archiving status unclear
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Applies to NIH, HHMI and Wellcome Trust authors only
    • On PubMed Central
    • Applies to JBSD journal
    • All titles now published elsewhere [10 April 2015]
  • Classification
    ​ white

Publications in this journal

  • Technology in cancer research & treatment 10/2015; DOI:10.1177/1533034615607693
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    ABSTRACT: MicroRNAs are highly conserved noncoding RNA that negatively modulate protein expression at a posttranscriptional and/or translational level. MicroRNAs play an important role in the development and progression of human cancers, including osteosarcoma. Recent studies have shown that miR-100 was downregulated in many cancers; however, the role of miR-100 in human osteosarcoma has not been totally elucidated. In this study, we demonstrate that the expression of miR-100 was significantly downregulated in human osteosarcoma tissues compared to the adjacent tissues. Enforced expression of miR-100 inhibited cell proliferation, migration, and invasion abilities of osteosarcoma cells, U-2OS, and MG-63. Additionally, miR-100 also sensitized osteosarcoma cells to cisplatin and promoted apoptosis. Furthermore, overexpression of miR-100 decreased the expression of insulin-like growth factor I receptor and inhibited PI3K/AKT and MAPK/ERK signaling. In human clinical specimens, insulin-like growth factor I receptor was inversely correlated with miR-100 in osteosarcoma tissues. Collectively, our results demonstrate that miR-100 is a tumor suppressor microRNA and indicate its potential application for the treatment of osteosarcoma in future. © The Author(s) 2015.
    Technology in cancer research & treatment 08/2015; DOI:10.1177/1533034615601281
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    ABSTRACT: Background: Antibody resistance, both de novo and acquired, is usually related to high risk of recurrence and lower survival rate in gynecologic cancers. Prevention or reversal of the resistance often yields beneficial clinical results. It was reported that anti-human epidermal growth factor receptor 3 monoclonal antibody was effective against trastuzumab-resistant breast cancer cells. Here in our laboratory, an acquired trastuzumab-resistant ovarian cancer cell line, SKOV3-T, was established previously. Further, human epidermal growth factor receptor 3 was observed to be upregulated in this cell line by microarray detection, suggesting that the antagonist against human epidermal growth factor receptor 3 might be effective to inhibit the resistant cells.
    Technology in cancer research & treatment 06/2015; DOI:10.1177/1533034615588422
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    ABSTRACT: The Clock gene, an indispensable component of the circadian clock, not only modulates circadian oscillations but also regulates organismal function. We examined whether silencing the expression of the human Clock gene in glioma cells influences cell growth and induces apoptosis after irradiation. Silencing the expression of Clock in a human glioma cell line (U87MG), but not in a control glioma cell line, resulted in increased apoptosis and cell cycle arrest. Moreover, silencing Clock expression altered the expression of apoptosis-related genes. The protein levels of c-Myc and Cyclin B1 were downregulated, but those of p53 were upregulated, in human Clock-silenced U87MG cells compared with control cells. Our results suggest that the circadian gene human Clock may play an important role in carcinogenesis by inhibiting apoptotic cell death via attenuating proapoptotic signaling.
    Technology in cancer research & treatment 05/2015; DOI:10.1177/1533034615585433
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    ABSTRACT: Our study aimed to investigate the effect of ultrasonic thermotherapy on the targeted delivery of liposomal doxorubicin to superficial tumors, local drug concentrations in tumor tissue, and the curative effect of chemotherapy. Twenty rabbits with VX2 tumors transplanted into the superficial muscle of the hind limb were randomly assigned to the following 4 treatment groups: (1) free doxorubicin, (2) liposomal doxorubicin hydrochloride, (3) liposomal doxorubicin hydrochloride plus 41°C thermotherapy, and (4) liposomal doxorubicin hydrochloride plus 43°C thermotherapy. Ultrasonic thermotherapy was delivered at 41°C to 43°C. Plasma, tumor, and organ/tissue homogenates were analyzed by high-pressure liquid chromatography to determine doxorubicin concentrations. The drug concentration in plasma and tumor tissue was significantly higher in the liposomal doxorubicin hydrochloride plus thermotherapy group than in the liposomal doxorubicin hydrochloride and free doxorubicin groups, but there were no significant differences among the 4 groups in the concentration in heart or kidney tissue. Combining thermotherapy with liposomal doxorubicin hydrochloride chemotherapy significantly increased the concentration of the drug in tumor tissue. The doxorubicin concentration was significantly higher in the liposomal doxorubicin hydrochloride plus 41°C thermotherapy group.
    Technology in cancer research & treatment 04/2015; DOI:10.1177/1533034615580441
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    ABSTRACT: To evaluate 2 simultaneous integrated boost treatment planning techniques using helical tomotherapy for breast conserving therapy with regard to acute skin toxicity and dosimetry. Thirty-two patients were studied. The original approach was used for 16 patients and incorporated a directional block of the ipsilateral lung and breast. An additional 16 patients were planned using a modified approach that incorporates a full block of the ipsilateral lung exclusive of 4 cm around the breast. Dose-volume histograms of targets and critical structures were evaluated. Skin toxicity monitoring was performed throughout treatment and follow-up using the Common Terminology Criteria for Adverse Events. Treatment was well tolerated with patients receiving a median dose of 59.36 Gy. Of the 16 patients in both groups, 8 had grade 2 erythema immediately after radiation. On 3-week follow-up, 10 and 7 patients in the original and modified groups showed grade 1 erythema. On 3- and 6-month follow-up, both groups had minimal erythema, with all patients having either grade 0 or 1 symptoms. No grade 2 or 3 toxicities were reported. Mean treatment time was 7.5 and 10.4 minutes using the original and modified methods. Adequate dose coverage was achieved using both methods (V95 = 99.5% and 98%). Mean dose to the heart was 10.5 and 1.8 Gy, respectively (P < .01). For right-sided tumors, the original and modified plans yielded a mean of 8.8 and 1.1 Gy (P < .01) versus 11.7 and 2.4 Gy for left-sided tumors (P < .01). The mean dose to the ipsilateral lung was also significantly lower in the modified plans (11.8 vs 5.0 Gy, P < .01). Tomotherapy is capable of delivering homogeneous treatment plans to the whole breast and lumpectomy cavity using simultaneous integrated boost treatment. Using the treatment methods described herein, extremely low doses to critical structures can be achieved without compromising acute skin toxicity. © The Author(s) 2015.
    Technology in cancer research & treatment 03/2015; DOI:10.1177/1533034615574387
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    ABSTRACT: In image guided radiotherapy, in order to reach a prescribed uniform dose in dynamic tumors at thorax region while minimizing the amount of additional dose received by the surrounding healthy tissues, tumor motion must be tracked in real-time. Several correlation models have been proposed in recent years to provide tumor position information as a function of time in radiotherapy with external surrogates. However, developing an accurate correlation model is still a challenge. In this study, we proposed an adaptive neuro-fuzzy based correlation model that employs several data clustering algorithms for antecedent parameters construction to avoid over-fitting and to achieve an appropriate performance in tumor motion tracking compared with the conventional models. At first step of this work, a comparative assessment is done between seven nuero-fuzzy correlation models each constructed using a unique data clustering algorithm. Then, all these constructed models are combined within an adaptive sevenfold synthetic model since our tumor motion database has high degrees of variability and that each model has its intrinsic properties at motion tracking. In the proposed sevenfold synthetic model, best model is selected adaptively at pre-treatment. The model also updates the steps for each patient using an automatic model selectivity subroutine. We tested the efficacy of the proposed synthetic model on twenty patients (divided equally into two control and worst groups) treated with CyberKnife synchrony system. Compared to Cyberknife model, the proposed synthetic model resulted in 61.2% and 49.3% reduction in tumor tracking error in worst and control group, respectively. These results suggest that the proposed model selection program in our synthetic neuro-fuzzy model can significantly reduce tumor tracking errors. Numerical assessments confirmed that the proposed synthetic model is able to track tumor motion in real time with high accuracy during treatment. © The Author(s) 2015.
    Technology in cancer research & treatment 03/2015; DOI:10.1177/1533034615571153
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    ABSTRACT: Hypoxia is associated with resistance to radiotherapy and chemotherapy. Functional imaging of hypoxia in non-small cell lung cancer (NSCLC) could allow early assessment of tumor response and guide subsequent therapies. Epidermal growth factor receptor (EGFR) inhibition with erlotinib reduces hypoxia in vivo. [18F]-Fluoromisonidazole (FMISO) is a radiolabeled tracer that selectively accumulates in hypoxic cells. We sought to determine whether FMISO positron emission tomography (FMISO-PET) could detect changes in hypoxia in vivo in response to EGFR-targeted therapy. In a preclinical investigation, nude mice with human EGFR-mutant lung adenocarcinoma xenografts underwent FMISO-PET scans before and 5 days after erlotinib or empty vehicle initiation. Descriptive statistics and analysis of variance (ANOVA) tests were used to analyze changes in standardized uptake value (SUV), with pooled analyses for the mice in each group (baseline, postvehicle, and posterlotinib). In a small correlative pilot human study, patients with EGFR-mutant metastatic NSCLC underwent FMISO-PET scans before and 10 to 12 days after erlotinib initiation. Changes in SUV were compared to standard chest computed tomography (CT) scans performed 6 weeks after erlotinib initiation. The mean (±standard error of the mean; SUVmean) of the xenografts was 0.17 ± 0.014, 0.14 ± 0.008, and 0.06 ± 0.004 for baseline, postvehicle, and posterlotinib groups, respectively, with lower SUVmean among the posterlotinib group compared to other groups (P < .05). Changes on preclinical PET imaging were striking, with near-complete disappearance of FMISO uptake after erlotinib initiation. Two patients were enrolled on the pilot study. In the first patient, SUVmean increased by 21% after erlotinib, with progression on 6-week chest CT followed by death after 4.8 months. In the second patient, SUVmean decreased by 7% after erlotinib, with regression on 6-week chest CT accompanied by clinical improvement; the patient had stable disease at 14.5 months. In conclusion, we observed that FMISO-PET can detect changes in hypoxia levels after EGFR-directed therapy in EGFR-mutant NSCLC. Further study is warranted to determine its utility as an imaging biomarker of early response to EGFR-directed therapy. © The Author(s) 2015.
    Technology in cancer research & treatment 03/2015; DOI:10.1177/1533034615574386
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    ABSTRACT: To evaluate the overall positioning accuracy of image-guided intracranial radiosurgery across multiple linear accelerator platforms. A computed tomography scan with a slice thickness of 1.0 mm was acquired of an anthropomorphic head phantom in a BrainLAB U-frame mask. The phantom was embedded with three 5-mm diameter tungsten ball bearings, simulating a central, a left, and an anterior cranial lesion. The ball bearings were positioned to radiation isocenter under ExacTrac X-ray or cone-beam computed tomography image guidance on 3 Linacs: (1) ExacTrac X-ray localization on a Novalis Tx; (2) cone-beam computed tomography localization on the Novalis Tx; (3) cone-beam computed tomography localization on a TrueBeam; and (4) cone-beam computed tomography localization on an Edge. Each ball bearing was positioned 5 times to the radiation isocenter with different initial setup error following the 4 image guidance procedures on the 3 Linacs, and the mean (µ) and one standard deviation (σ) of the residual error were compared. Averaged overall 3 ball bearing locations, the vector length of the residual setup error in mm (µ ± σ) was 0.6 ± 0.2, 1.0 ± 0.5, 0.2 ± 0.1, and 0.3 ± 0.1 on ExacTrac X-ray localization on a Novalis Tx, cone-beam computed tomography localization on the Novalis Tx, cone-beam computed tomography localization on a TrueBeam, and cone-beam computed tomography localization on an Edge, with their range in mm being 0.4 to 1.1, 0.4 to 1.9, 0.1 to 0.5, and 0.2 to 0.6, respectively. The congruence between imaging and radiation isocenters in mm was 0.6 ± 0.1, 0.7 ± 0.1, 0.3 ± 0.1, and 0.2 ± 0.1, for the 4 systems, respectively. Targeting accuracy comparable to frame-based stereotactic radiosurgery can be achieved with image-guided intracranial stereotactic radiosurgery treatment. © The Author(s) 2015.
    Technology in cancer research & treatment 03/2015; DOI:10.1177/1533034615574385
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    ABSTRACT: To develop decision trees predicting for tumor volume reduction in patients with head and neck (H&N) cancer using pretreatment clinical and pathological parameters. Forty-eight patients treated with definitive concurrent chemoradiotherapy for squamous cell carcinoma of the nasopharynx, oropharynx, oral cavity, or hypopharynx were retrospectively analyzed. These patients were rescanned at a median dose of 37.8 Gy and replanned to account for anatomical changes. The percentages of gross tumor volume (GTV) change from initial to rescan computed tomography (CT; %GTVΔ) were calculated. Two decision trees were generated to correlate %GTVΔ in primary and nodal volumes with 14 characteristics including age, gender, Karnofsky performance status (KPS), site, human papilloma virus (HPV) status, tumor grade, primary tumor growth pattern (endophytic/exophytic), tumor/nodal/group stages, chemotherapy regimen, and primary, nodal, and total GTV volumes in the initial CT scan. The C4.5 Decision Tree induction algorithm was implemented. The median %GTVΔ for primary, nodal, and total GTVs was 26.8%, 43.0%, and 31.2%, respectively. Type of chemotherapy, age, primary tumor growth pattern, site, KPS, and HPV status were the most predictive parameters for primary %GTVΔ decision tree, whereas for nodal %GTVΔ, KPS, site, age, primary tumor growth pattern, initial primary GTV, and total GTV volumes were predictive. Both decision trees had an accuracy of 88%. There can be significant changes in primary and nodal tumor volumes during the course of H&N chemoradiotherapy. Considering the proposed decision trees, radiation oncologists can select patients predicted to have high %GTVΔ, who would theoretically gain the most benefit from adaptive radiotherapy, in order to better use limited clinical resources. © The Author(s) 2015.
    Technology in cancer research & treatment 03/2015; DOI:10.1177/1533034615572638
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    ABSTRACT: Delivering stereotactic body radiotherapy for liver metastases remains a challenge because of respiratory motion and poor visibility without intravenous contrast. The purpose of this article is to describe a novel and simple computed tomography (CT) simulation process of integrating timed intravenous contrast that could overcome the uncertainty of target delineation. The simulation involves two 4-dimensional CT (4DCT) scans. The first scan only encompasses the immediate region of the tumor and surrounding tissue, which reduces the 4DCT scan time so that it can be optimally timed with intravenous contrast injection. The second 4DCT scan covers a larger volume and is used as the primary CT data set for dose calculation, as well as patient setup verification on the treatment unit. The combination of the two 4DCT scans allows us to optimally visualize liver metastases over all phases of the breathing cycle while simultaneously acquiring a long enough 4DCT data set that is suitable for planning and patient setup verification. This simulation technique allows for a better target definition when treating liver metastases, without being invasive. © The Author(s) 2015.
    Technology in cancer research & treatment 03/2015; DOI:10.1177/1533034615572341
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    ABSTRACT: Stereotactic body radiation therapy (SBRT) is an emerging technology for the treatment of spinal metastases, although the dosimetric impact of the calculation method on spinal dose distribution is unknown. This study attempts to determine whether CyberKnife (CK)-based SBRT using a Ray Tracing (RyTc) algorithm is comparable dosimetrically to that of Monte Carlo (MC) for thoracic spinal lesions. Our institutional CK-based SBRT database for thoracic spinal lesions was queried and a cohort was generated. Patients were planned using RyTc and MC algorithms using the same beam angles and monitor units. Dose-volume histograms of the planning target volume (PTV), spinal cord, esophagus, and skin were generated, and dosimetric parameters were compared. There were 37 patients in the cohort. The average percentage volume of PTV covered by the prescribed dose with RyTc and MC algorithms was 91.1% and 80.4%, respectively (P < .001). The difference in average maximum spinal cord dose between RyTc and MC plans was significant (1126 vs 1084 cGy, P = .004), with the MC dose ranging from 18.7% below to 13.8% above the corresponding RyTc dose. A small reduction in maximum skin dose was also noted (P = .017), although no difference was seen in maximum esophageal dose (P = .15). Only PTVs smaller than 27 cm(3) were found to correlate with large (>10%) changes in dose to 90% of the volume (P = .014), while no correlates with the average percentage volume of PTV covered by the prescribed dose were demonstrated. For thoracic spinal CK-based SBRT, RyTc computation may overestimate the MC calculated average percentage volume of PTV covered by the prescribed dose and have unpredictable effects on doses to organs at risk, particularly the spinal cord. In this setting, use of RyTc optimization should be limited and always verified with MC. © The Author(s) 2015.
    Technology in cancer research & treatment 01/2015; DOI:10.1177/1533034614568026
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    ABSTRACT: Cyclin E is a critical regulator in cell cycle and promotes the initiation of DNA replication and centrosome duplication in late G1. The overexpression of cyclin E is common in cancers of the digestive system. However, whether cyclin E represents a prognostic biomarker in gastrointestinal cancer remains controversial. We reviewed the published literatures to clarify the association between cyclin E determined by immunohistochemistry (IHC) and survival in gastrointestinal cancer. Literatures were searched in PubMed and Cochrane Library published up to December 1, 2014. A total of 282 articles were initially identified, and 14 articles were included in this study. Meta-analysis was performed for 10 studies with a total of 1300 patients. Combined hazard risk (HR) and corresponding 95% confidence interval (CI) were calculated by random-effect model due to the heterogeneity. The quality of included studies was assessed by the Newcastle-Ottawa Scale and the Methodological Index for Non-Randomized Studies (MINORS). We found that high level of cyclin E was a predicator of poor prognosis among patients with gastrointestinal cancer (HR = 1.67, 95% CI = 1.06-2.63, P = .028). In summary, overexpression of cyclin E is associated with poor prognosis in gastrointestinal cancer and expression of cyclin E determined by IHC might be a prognostic marker for gastrointestinal cancer in clinical practice. © The Author(s) 2015.
    Technology in cancer research & treatment 01/2015; DOI:10.1177/1533034614568098
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    ABSTRACT: Intact brain metastases tend to be small and spherical compared to postsurgery brain cavities, which tend to be large and irregular shaped and, as a result, a challenge with respect to treatment planning. The purpose of the present study is to develop guidelines for normal brain tissue dose and to investigate whether there is a dependence on target type for patients treated with hypofractionated volumetric modulated arc radiotherapy (HF-VMAT). Treatment plans from a total of 100 patients and 136 targets (55 cavity and 81 intact) were retrospectively reviewed. All targets were treated with HF-VMAT with total doses ranging between 20 and 30 gray (Gy) in 5 fractions. All plans met institutional objectives for organ-at-risk constraints and were clinically delivered. Dose falloff was quantified using gradient index (GI) and distance between the 100% and 50% isodose lines (R50). Additionally, the dose to normal brain tissue (brain contour excluding all gross tumor or clinical target volumes) was assessed using volume receiving specific doses (Vx) where x ranged from 5 to 30 Gy. Best-fit curves using power law relationships of the form y = ax(b) were generated for GI, R50, and Vx (normal brain tissue) versus target volume. There was a statistically significant difference in planning target volume (PTV) for cavities versus intact metastases with mean volumes of 37.8 cm(3) and 9.5 cm(3), respectively (P < .0001). The GI and R50 were statistically different: 3.4 and 9.8 mm for cavities versus 4.6 and 8.3 mm for intact metastases (P < .0001). The R50 increased with PTV with power law coefficients (a, b) = (6.3, 0.12) and (5.9, 0.15) for cavities and intact, respectively. GI decreased with PTV with coefficients (a, b) = (5.9, -0.18) and (5.7, -0.14) for cavities and intact, respectively. The normal brain tissue Vx also exhibited power law relationships with PTV for x = 20 to 28.8 Gy. In conclusion, target volume is the main predictor of dose falloff. The results of the present study can be used for determining target volume-based thresholds for dose falloff and normal brain tissue dose-volume constraints. © The Author(s) 2015.
    Technology in cancer research & treatment 01/2015; DOI:10.1177/1533034614567277
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    ABSTRACT: To evaluate the scattered and secondary radiation fields present in and around a passive proton treatment nozzle. In addition, based on these initial tests and system reliability analysis, to develop, install, and evaluate a radiation shielding structure to protect sensitive electronics against single-event effects (SEE) and improve system reliability. Landauer Luxel+ dosimeters were used to evaluate the radiation field around one of the gantry-mounted passive proton delivery nozzles at Loma Linda University Medical Center's James M Slater, MD Proton Treatment and Research Center. These detectors use optically stimulated luminescence technology in conjunction with CR-39 to measure doses from X-ray, gamma, proton, beta, fast neutron, and thermal neutron radiation. The dosimeters were stationed at various positions around the gantry pit and attached to racks on the gantry itself to evaluate the dose to electronics. Wax shielding was also employed on some detectors to evaluate the usefulness of this material as a dose moderator. To create the scattered and secondary radiation field in the gantry enclosure, a polystyrene phantom was placed at isocenter and irradiated with 250 MeV protons to a dose of 1.3 kGy over 16 hours. Using the collected data as a baseline, a composite shielding structure was created and installed to shield electronics associated with the precision patient positioner. The effectiveness of this shielding structure was evaluated with Landauer Luxel+ dosimeters and the results correlated against system uptime. The measured dose equivalent ranged from 1 to 60 mSv, with proton/photon, thermal neutron, fast neutron, and overall dose equivalent evaluated. The position of the detector/electronics relative to both isocenter and also neutron-producing devices, such as the collimators and first and second scatterers, definitely had a bearing on the dose received. The addition of 1-inch-thick wax shielding decreased the fast neutron component by almost 50%, yet this yielded a corresponding average increase in thermal neutron dose of 150% as there was no Boron-10 component to capture thermal neutrons. Using these data as a reference, a shielding structure was designed and installed to minimize radiation to electronics associated with the patient positioner. The installed shielding reduced the total dose experienced by these electronics by a factor of 5 while additionally reducing the fast and thermal neutron doses by a factor of 7 and 14, respectively. The reduction in radiation dose corresponded with a reduction of SEE-related downtime of this equipment from 16.5 hours to 2.5 hours over a 6-month reporting period. The data obtained in this study provided a baseline for radiation exposures experienced by gantry- and pit-mounted electronic systems. It also demonstrated and evaluated a shielding structure design that can be retrofitted to existing electronic system installations. It is expected that this study will benefit future upgrades and facility designs by identifying mechanisms that may minimize radiation dose to installed electronics, thus improving facility uptime. © The Author(s) 2015.
    Technology in cancer research & treatment 01/2015; DOI:10.1177/1533034614567369