Analysis of the evaluation of Radiation Shielding Requirements for Radio-therapy Room—Prat 2:Radiotherapy Room of Electron Linear Accelerators(GBZ/T 201.2-2011):personnel in medical radiation technology service institutions
Objective To track and evaluate the scientificity,applicability,and operability of the current implementation of the Radiation Shielding Specifications for Radiotherapy Treatment Rooms—Part 2:Radiotherapy Room of Electron Lin-ear Accelerators(GBZ/T 201.2-2011)among personnel in medical radiation technology service institutions,and to provide scientific evidence for further improvement of the standard.Methods Following the Guidelines for Health Standards Tracking Evaluation Work(WS/T 536-2017)and the project implementation plan,a survey was conducted among 140 per-sonnel engaged in shielding testing and evaluation of electron linear accelerator rooms in medical radiation technology ser-vice institutions from 24 provinces in China.The methods of pre-investigation,on-site research,mailing,and email were used to collect data for analysis.Results Questionnaires were completed by 140 respondents from 98 medical radiation service institutions,including 63 public institutions and 77 private institutions.Of the surveyed individuals,86.68%claimed to have a good or very good understanding of the standard,while only 64.3%had participated in training related to the stand-ard.The survey indicated a low level of mastery of the standard content among the personnel and insufficient efforts in train-ing and dissemination.Although only 3.57%of the respondents considered the existing standard to be inapplicable in the context of new radiotherapy equipment and technological advancements,95.71%,93.57%,and 96.43%believed that shield-ing calculation examples should be added for tomotherapy devices,CyberKnife systems,and ring accelerators with self-shielding bodies.Furthermore,65%of the respondents felt that neutron shielding should be considered for 10 MV X-ray ac-celerator rooms.Conclusion The GBZ/T 201.2-2011 has been widely used for radiation protection in radiotherapy.However,it is imperative to update this standard.Additionally,due to the technical complexity of the standard,it can be challenging for professionals to fully understand and implement it.Therefore,publicity goals should be tailored to different groups and the training of key personnel should be strengthened.A nationwide communication and cooperation mechanism should be established to ensure uniform implementation of the standard.
Electron linear acceleratorTracking and evaluationStandard assessmentQuestionnaire survey
NETL
NSTL
万方数据
